Which is cheaper, the Borealis Watch Co. Sea Storm MK2 GMT or the Hamilton Khaki Aviation Day Date Auto?

At MSRP the Borealis Watch Co. Sea Storm MK2 GMT is the cheaper of the two at $415, against $1,125 for the Hamilton Khaki Aviation Day Date Auto — a $710 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 GMT or the Hamilton Khaki Aviation Day Date Auto?

The Hamilton Khaki Aviation Day Date Auto wears larger at 42mm versus 41.50mm for the Borealis Watch Co. Sea Storm MK2 GMT — a 0.5mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Sea Storm MK2 GMT or the Hamilton Khaki Aviation Day Date Auto?

The Borealis Watch Co. Sea Storm MK2 GMT is rated to 300m versus 100m for the Hamilton Khaki Aviation Day Date Auto.

Which has a longer power reserve, the Borealis Watch Co. Sea Storm MK2 GMT or the Hamilton Khaki Aviation Day Date Auto?

The Hamilton Khaki Aviation Day Date Auto carries a 80-hour power reserve against 40 hours on the Borealis Watch Co. Sea Storm MK2 GMT.

What movement does the Borealis Watch Co. Sea Storm MK2 GMT run compared to the Hamilton Khaki Aviation Day Date Auto?

Both watches run automatic movements — the Borealis Watch Co. Sea Storm MK2 GMT uses the NH34 and the Hamilton Khaki Aviation Day Date Auto uses the H-40.

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsHamilton Khaki Aviation Day Date Auto

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Borealis Watch Co.Sea Storm MK2 GMT

borealis-sea-storm-mk2-gmt-version-aa

MSRP $415

Hamilton Khaki Aviation Day Date Auto

h64645131

MSRP $1,125

At a glance

10 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Khaki Aviation Day Date Auto42mm

Power Reserve

Sea Storm MK2 GMT40h

Khaki Aviation Day Date Auto80h

Water Resistance

Sea Storm MK2 GMT300m

Khaki Aviation Day Date Auto100m

MSRP

Sea Storm MK2 GMT$415

Khaki Aviation Day Date Auto$1,125

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Lume

BGW9

None

Movement

2 specs

Caliber

NH34

H-40

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$415

$1,125

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